There is now an official FAQ for Sims 4. Obviously it will be sparse, but there are some changes as well to expect:
Sims 4 FAQSome highlights include:
What platform is The Sims 4 available on?The Sims 4 will be available for PC.Will
The Sims 4 be available on Mac? We are currently focused on the PC version. We have no updates on Mac at this time.
What languages are supported in The Sims 4?The Sims 4 will support English, German, French, Russian, Polish, Swedish, Spanish, Italian, Dutch, Norwegian, Danish, Finnish, Brazilian Portuguese, Czech, Chinese (Traditional), Japanese, and Korean
Will I be able to use SimPoints to purchase additional content in The Sims 4?SimPoints will not be supported by The Sims 4, but will continue to be a form of payment for The Sims 3 content in The Sims 3 Store.
So, my recommendations, especially on the last part I highlighted, be careful on the amount of SimsPoints you might buy at the Sims 3 Store since it looks like they won't be transferrable to the Sims 4.